如何向formGroup添加formArray？

import { Component } from '@angular/core';
import { FormGroup, FormBuilder, FormArray } from '@angular/forms';

@Component({
  selector: 'app-example',
  template: `
    <form [formGroup]="myForm">
      <div formArrayName="myArray">
        <div *ngFor="let control of myForm.get('myArray').controls; let i = index">
          <input [formControlName]="i">
        </div>
      </div>
    </form>
  `
})
export class ExampleComponent {
  myForm: FormGroup;

  constructor(private fb: FormBuilder) {
    this.myForm = this.fb.group({
      myArray: this.fb.array([])  // 创建一个空的FormArray
    });
  }

  addControl() {
    const control = this.fb.control('');  // 创建一个新的FormControl
    this.myForm.get('myArray').push(control);  // 将FormControl添加到FormArray中
  }
}